Press F10, and small letters appear over each ribbon tab and quick access toolbar item. Alt+H takes you to the Home tab, ...

The Fn key is also known as the function key, and on Windows and most Mac keyboards, you'll find it located in the bottom-left corner of your keyboard.

As part of key combos in Word, Excel, and Outlook, they make it easier and faster to perform commonly used commands. Here are 15 of the most essential function-key strokes.

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!